3612520 has 16 divisors (see below), whose sum is σ = 8128260. Its totient is φ = 1444992.

The previous prime is 3612509. The next prime is 3612529. The reversal of 3612520 is 252163.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2896804 + 715716 = 1702^2 + 846^2 .

It is not an unprimeable number, because it can be changed into a prime (3612529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45117 + ... + 45196.

Almost surely, 2^3612520 is an apocalyptic number.

It is an amenable number.

3612520 is an abundant number, since it is smaller than the sum of its proper divisors (4515740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3612520 is a wasteful number, since it uses less digits than its factorization.

3612520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90324 (or 90320 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 3612520 is about 1900.6630422040. The cubic root of 3612520 is about 153.4393511708.

Adding to 3612520 its reverse (252163), we get a palindrome (3864683).

It can be divided in two parts, 36125 and 20, that multiplied together give a square (722500 = 850²).

The spelling of 3612520 in words is "three million, six hundred twelve thousand, five hundred twenty".